Luna-Resurs-1(OA) spacecraft high gain antenna drive mechanism

Purpose:

Rotates high gain antenna about two perpendicular axes Qualification: Ground development tests completed

Performances:

Rotation angle range, ° ±85 ±75 Scan speed, °/s, no less 5 Output shaft rotation step, arcmin 2,5 Pointing error, arcmin, no more ±15 Self-braking torque (unpowered), N·m, no less 2 Torque achieved, N·m, no less 6 Operating temperature range, °C –45 to +50 Life expectancy, °, no less 1 200 000 Mass, kg 7,4 Angle sensor Rotary encoder, Error: ±10′ at ambient temp., ±15′ over extended temp. range